DR-1 used a few times, now makes a squeeling noise whenever i start the throttle

If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

DR-1 used a few times, now makes a squeeling noise whenever i start the throttle

Hey all

Like the title says, Ive run mine a few times now with no problems...but lately as soon as I hit the throttle on take off, it sounds like something is "slipping" or making a squealing sound....any idea what this could be? Im new to Heli's so Im not sure where to start....

so I figured it out, a couple days before, the upper main shaft came loose and flew out of the heli. I reinstalled it, but It wasn't seated all the way down, so the gears weren't lining up right. Once I made sure it was seated all the way down and retightened the grub screw, all seems okay.